You can give out a number of answers, all I've found to be acceptable by gf's:
a) invite her so she can see for herself
b) your friends don't want to go anywhere else
c) you have no point going to a normal bar since you're not allowed to pickup anymore
d) you barely look at the stage anyways and mostly talk about work
e) you dont mind if she goes to a male strip club
Ofcourse if your gf is/was a stripper, then you shouldn't have a problem
